Babcock and Wilcox Steam Generator, Patent Model

This model was submitted to the U.S. Patent Office with the application for the patent issued to George H. Babcock, of Plainfield, Hew Jersey, and Stephen Wilcox, of Brooklyn, New York, April 4, 1876, no. 175548.
The model represents the typical elements of an inclined tube, horizontal longitudinal drum boiler upon which are shown the mode of mounting and supporting such boilers and the provisions for making the connections of the parts that are the subject of the patent.
The drum of the boiler is represented as having cast-iron ends, each of which is formed with a stout horn near the top adapted to receive a suspension link from a cross girder resting upon columns at the sides of the boiler. Each end casting is further provided with a series of holes near the bottom properly adapted to receive tubes joined thereto by the process known as expanding. These tubes are joined at the front and back to the vertical tubes rising from the water-tube headers by means of hollow castings in which hand holes are provided that permit both sets of tubes to be expanded in the openings in the castings.
These improvements are said to be the results of the inventors’ experience with the boiler patented by them February 18, 1873, no. 135877.
This description comes from the 1939 Catalog of the Mechanical Collections of the Division of Engineering United States Museum Bulletin 173 by Frank A. Taylor.
Currently not on view
date made
patent date
Babcock, George H.
Wilcox, Jr., Stephen
place made
United States: New York
associated place
United States: New Jersey, Plainfield
Physical Description
wood (overall material)
overall: 9 1/4 in x 6 1/8 in x 10 1/4 in; 23.495 cm x 15.5575 cm x 26.035 cm
overall-from catalog card: 9 in x 6 in x 10 in; 22.86 cm x 15.24 cm x 25.4 cm
ID Number
accession number
catalog number
patent number
See more items in
Work and Industry: Mechanical and Civil Engineering
Industry & Manufacturing
Bulletin 173
Engineering, Building, and Architecture
Data Source
National Museum of American History


This is a very interesting object. Thanks for the help on my project.

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